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DS0 Fallback Configuration window 65
Models 2616RC, 3096RC & 3196RC Admin Reference Guide 5 • DS0 Mapping
Fallback Port Slots (daxFallbackSlotH110)
This parameter defines which time slots will comprise the fallback receive channel from the H.110 bus to the
T-DAC for the fallback mapping. Use the same notation as for Watch Port Slots (see section “Watch Port Slots
(daxWatchSlot)” on page 62).
Port Fallback Table
The Port Fallback Table (see figure 21 on page 61) displays a list of all existing fallback mappings which a T-
DAC operator has previously defined. Each row in the table displays a single fallback mapping, identified by an
ID number.
Fallback Mapping ID
Clicking the fallback mapping ID hyperlink displays the DAX Fallback ID window, which you can use to
delete the specified fallback mapping or change the value of the fallback Recovery Type parameter (see section
“DS0 Fallback ID (DAX Fallback ID) window”)
The parameters comprising each fallback mapping are described in the paragraphs above, with one the excep-
tion—Recovery Type (see section “Recovery Type (daxFallbackRecovery)”).
Recovery Type (daxFallbackRecovery)
The Recovery Type parameter defines how the T-DAC will behave when the primary channel in a fallback
mapping recovers (returns to normal operation) once the fallback channel has switched in. There are two
options for the value of Recovery Type.
• userForceRecovery(0)—Default. When the primary channel port recovers and all failures are cleared, the T-
DAC will continue to route traffic over the fallback channel until the T-DAC operator intervenes.
To force traffic back to the primary channel:
- On the DS0 Mapping page, in the Static Connections table, find the connection for which you wish to
force recovery.
- On the right-most side of the row, click the Force Recovery button
• autoRecovery(1)—When the primary channel port recovers and all failures are cleared, the T-DAC will
automatically switch back to the primary channel defined for the connection and resume routing all traffic
for the connection over the primary channel.
DS0 Fallback ID (DAX Fallback ID) window
For the selected fallback mapping the DS0 Fallback ID window provides the capability to:
• Delete an existing DS0 fallback mapping (backup connection)
• Change the value of the fallback Recovery Type parameter.
The page also displays all parameters which define the selected fallback mapping.
Viewing the DS0 Fallback ID window
To view the DS0 Fallback ID window for a specific DS0 Fallback Mapping (backup connection):
1. On the DS0 Fallback page, under Port Fallback Table, find the Connection ID number for the fallback
mapping you wish to view.